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can: dev: can_restart(): post buffer from the right context 

[ Upstream commit a1e654070a ]

netif_rx() is meant to be called from interrupt contexts. can_restart() may be
called by can_restart_work(), which is called from a worqueue, so it may run in
process context. Use netif_rx_ni() instead.

Fixes: 39549eef35 ("can: CAN Network device driver and Netlink interface")
Co-developed-by: Loris Fauster <loris.fauster@ttcontrol.com>
Signed-off-by: Loris Fauster <loris.fauster@ttcontrol.com>
Signed-off-by: Alejandro Concepcion Rodriguez <alejandro@acoro.eu>
Link: https://lore.kernel.org/r/4e84162b-fb31-3a73-fa9a-9438b4bd5234@acoro.eu
[mkl: use netif_rx_ni() instead of netif_rx_any_context()]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Alejandro Concepcion Rodriguez 2020-11-05 21:51:47 +00:00 committed by Greg Kroah-Hartman
parent 247b03eca2
commit 85854e4e55
1 changed files with 1 additions and 1 deletions
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2
drivers/net/can/dev.c
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@ -567,7 +567,7 @@ static void can_restart(struct net_device *dev)
}
cf->can_id |= CAN_ERR_RESTARTED;
netif_rx(skb);
netif_rx_ni(skb);
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;